Question

Answer 1

\(\text{Ta có:}\dfrac{AB}{CD}=\dfrac{4}{3}\left(gt\right)\)

\(\text{Mà CD=12cm}\left(gt\right)\)

\(\Rightarrow\dfrac{AB}{12}=\dfrac{4}{3}\)

\(\Leftrightarrow AB=\dfrac{12.4}{3}=16\left(cm\right)\)

Answer 2

\(\dfrac{AB}{CD}=\dfrac{4}{3}\) và \(CD=12cm\) 

\(\Rightarrow\dfrac{AB}{12}=\dfrac{4}{3}\\ \Rightarrow AB=\dfrac{12.4}{3}=16\left(cm\right).\)

Answer 3

`(AB)/(CD) = 4/3`

`=> (AB)/12 = 4/3`

`=> AB = 16cm`